Definition
An air conditioning system that cools and dehumidifies indoor air using refrigerant circulating through coils. AC systems typically last 10-15 years and require regular maintenance for efficiency.
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AC systems cool air by circulating refrigerant through coils; warm indoor air passes over the cold evaporator coil, and heat is rejected outside through the condenser. Central AC systems distribute cooled air through ductwork. Window and portable AC units cool individual rooms. AC systems typically last 10-15 years. Common problems include refrigerant leaks, compressor failure, clogged filters, and electrical issues. Inspectors assess age, condition, refrigerant levels, and operational efficiency.
Pro Tip
Have AC units serviced annually before cooling season. Clean or replace filters regularly.
Example
An AC unit inspection revealed a 16-year-old system with a slow refrigerant leak, operating at reduced capacity and high cost. Replacement with an efficient 15-SEER unit cost $4,200 but provided reliable cooling and improved energy efficiency.